文献类型：期刊文献

英文题名：Study of the mechanism of microwave-assisted extraction of Mahonia bealei (Foft.) leaves and Chrysanthemum morifolium (Ramat.) petals

作者：Gao, S; Han, W; Deng, X

机构：[1]E China Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China

年份：2004

卷号：19

期号：3

起止页码：244

外文期刊名：FLAVOUR AND FRAGRANCE JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000221499300015)】；

语种：英文

外文关键词：microwave-assisted extraction; Mahonia bealei (Fort.) leaves; berberine hydrochloride; Chrysanthemum morifolium (Ramat.) petals; structural changes of the cells

摘要：A study of microwave-assisted extraction (MAE) for berberine in Mahonia bealei (Fort.) was carried out with batch equipment, in order to investigate the mechanism of the extraction related to structural changes in the glands. The extracts were analysed by ultraviolet-visible spectrophotometry at 347 nm. The parameters investigated were solvent types, the intensity of microwave energy and the process ratio (g/ml) of materials to solvent volume. The microwave-assisted extraction of different Moisture content of materials was developed and optimized by means of three-factor and three-level orthogonal designs. Electron and optical micrographs of M. bealei (Fort.) leaves and Chrysanthemum morifolium (Ramat.) petals showed that the mechanism of the extractions was related to structural changes in the plant cells. Copyright (C) 2004 John Wiley Sons, Ltd.